diff --git a/combadge/support/soap/markers.py b/combadge/support/soap/markers.py
index 44a30b8..7754940 100644
--- a/combadge/support/soap/markers.py
+++ b/combadge/support/soap/markers.py
@@ -81,4 +81,4 @@ def __class_getitem__(cls, item: type[Any]) -> Any:
             return Annotated[item, cls()]
 
 else:
-    FormData: TypeAlias = _T
+    Header: TypeAlias = _T